https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111660
Bug ID: 111660
Summary: Compilation of constexpr function returning enum takes
exponential time with -std=c++2a
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: envia at envia dot pe.kr
Target Milestone: ---
Created attachment 56024
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56024&action=edit
It took more than 30 minutes.
It took more than 30 minutes when I compiled testcase.cc with g++ 14.0.0
20231001 on Debian GNU/Linux 12 with -std=gnu++2a (or gnu++20, c++2a, c++20).
I guess it is a regression because it finishes within 0.1 second with g++
13.2.0 or 12.3.0.
The testcase is based on GetOneCharToken() of V8.
